<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Insert</title>
</head>
<body>
<div id="in">
你好
</div>
<button id="button">按下</button>
<p>我不好</p>

<!--<p style="color: red">你好啊</p>-->
<script src="JsForInsert.js"></script>
</body>
</html>